<h3><u>
Answer:</u></h3>
<u>(a) Reason for the heart beating fast:</u>
- When we exercise/run the muscles work hard and need more oxygen.
- So, when Ravi's heart beats faster more blood can be pumped to the muscles thus giving the oxygen required.
<u>(b) Organs involved along with the heart to help Ravi complete his race:</u>
- The main organs involved along with the heart are quadriceps, hip flexors, hamstring, glutes and calf muscles.
- The nervous system, muscular system, skeletal system, respiratory system and circulatory system function effectively when a person runs.
Answer:
It could be called Rizant or a Lizatant..
The hypothesis was that eating one egg everyday for one year may or may not raise blood cholesterol levels.
<h3>What is a hypothesis?</h3>
A hypothesis is an explanation given prior to testing of an observation.
A hypothesis aims to give a reasonable explanation for a given observation.
The experiment given was designed to test if eating one egg everyday for one year will raise blood cholesterol.
Therefore, the hypothesis was that eating one egg everyday for one year may or may not raise blood cholesterol levels.
In conclusion, a hypothesis is like a guess without testing.
Learn more about hypothesis at: brainly.com/question/12416923
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Lever is responsible for supplying glucose to all parts as it contain polymer of glucose called as glycogen.
Answer:
B
Explanation:
i did that trust me i know this one
